| 李伟林,汤忠鎏,佘桂枝,张占英,王培香,孙秀梅,原进社,邵日昇,李喜成.核燃料元件厂和气体扩散厂工人死因回顾性调查[J].中华放射医学与防护杂志,1995,15(4):264-268 |
| 核燃料元件厂和气体扩散厂工人死因回顾性调查 |
| Radioepidemiological studies on workers in uranium fuel plants and gaseous diffusion plants |
| 投稿时间：1994-10-18 修订日期：1995-02-15 |
| DOI： |
| 中文关键词: 辐射流行病学 低水平电离辐射 回顾性队列研究 癌症 标准死亡比(SMR) |
| 英文关键词:Radiation epidemiology ionizing radiation cohort study cancer standarized mortality ratio |
| 基金项目: |
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| 中文摘要: |
| 本研究对核燃料元件厂和气体扩散厂职工1971～1985、1986年期间受照剂量及死因进行了回顾性调查,结果是放射组职工人均年剂量低于1mSv,至1985年底的累积剂量10mSv左右。观察放射组3652人,对照组5393人,两组分别累积53813和81650人年。全死因死亡：放射组104例(死亡率193.26×10-5),对照组253例(死亡率309.86×10-5),其中癌症死亡前者49例(死亡率91.06×10-5),后者82例(死亡率100.43×10-5);全死因死亡率经年龄调整后,两组间差异无显着性,死亡按1973～1975年全国癌亡率为标准计算SMR,两组间差别亦无显着性,并且均小于1.因此,在低水平辐射环境中未见癌症增加现象。 |
| 英文摘要: |
| This retrospective study of causes of death includes workers in nuclear fuel element plants and gaseous diffusion plants. The observation popultion consisted of 3652 workers in exposure group and 5393 workers in control group,with 53813 and 81650 person-years in the above two groups respectively during the period from 1971 to 1985 (1986) .The individual committed effective dose was less than 1 mSv per year and the accumulative dose was about 10 mSv in the period. In the observation period, 104 and 253 persons died in the exposure and control groups,repectively.The numbers of cancer death in these two groups were 49 and 82, respectively. The crude mortality rates were 193.26×10-5/person years and 309.86×10-5/person years, the cancer mortality rates were 91.06×10-5/person years and 100.43×10-5/person years, respectively.There was no significant difference in crude mortality rates betweenthe two groups after age adjustment. For standardized mortality ratio (SMR) of cancer,the calculation was carried out in the light of national survey of this SMR in small cities in 1973~1975.The results showed that SMRs of both groups were less than 1 and there was no significant difference between the two groups. So,there was no evidence of incidence increment of radiogenic cancer in workers exposed to low-level ionizing radiation. |
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